We have two Shih Tzu that are our babies. Our oldest is a year old now and Baxter is the baby, who is 3 months. Baxter suddenly became ill and we are uncertain if he perhaps became car sick or if it is something else (they both love to go for car rides). On our way home (not even a mile) Baxter starting vomiting, we got home and sat him down (thinking he was car sick). He has what can only be described as "water" constantly coming from his mouth (his face, chest and the blanket he lays on is wet there is so much fluid) and not active at all. Our vehicle had nothing in it he could have gotten in to, in fact he actually sits on my lap with his sister Hannah the entire time we go for rides. Please advise if there is a sickness or virus that would cause the symtoms I have described. He is not running a temp, he actually feels cool to touch. Thank you

Optional Information:
Age: <1; Male; Breed: Shih Tzu